The American Transportation Research Institute has appointed David S. Congdon, vice chairman and CEO of Old Dominion Freight Line, and Robert E. Lowt, president and CEO of Prime, to its board of directors.

UPDATED -- Another day, another raft of earnings reports on Thursday from the nation’s publicly owned trucking companies. Continuing a trend this first quarter, the companies' numbers are as varied as the services they offer.

The less-than-truckload carrier Old Dominion Freight Line Inc. has reported increases in freight for the first two months of 2016, including tons per day growing 2% and 3.2% for January and February, respectively, compared to the same time in 2015.

Old Dominion Freight Line, founded by Earl and Lillian Congdon as a one-truck operation in Richmond, Va., in 1934, today is one of the largest less-than-truckload carriers, and one of the largest trucking companies overall, in the United States. We talked to David Bates, senior vice president of operations, about the company’s success.

More trucking companies have released their third quarter financial earnings, showing improvements from a year earlier or at least maintaining their ground, despite complaints about the recent freight-hauling environment.

With about three weeks remaining in the third quarter of the year, the less-than-truckload carrier Old Dominion Freight Line on Tuesday reported increases in the amount of freight it has handled over the previous two months.

Old Dominion Freight Line saw first quarter net income increase 36.3% from a year earlier, totaling $62.5 million, driven by expansion in its market share and a new record in first-quarter operating ratio for the LTL carrier.

A federal jury earlier this month found that the trucking company Old Dominion Freight Line violated federal disability discrimination law when it denied accommodation to -- and then fired -- a truck driver who self-reported alcohol abuse, according to the U.S. Equal Employment Opportunity Commission.